40807960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14369}}^1$

素因数の和:14451

約数の個数: 32

約数和(自身を含む): 93117600

約数和(自身を除く): 52309640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 14369, 28738, 57476, 71845, 114952, 143690, 287380, 574760, 1020199, 2040398, 4080796, 5100995, 8161592, 10201990, 20403980, 40807960]

約数ペア:

[(1, 40807960), (2, 20403980), (4, 10201990), (5, 8161592), (8, 5100995), (10, 4080796), (20, 2040398), (40, 1020199), (71, 574760), (142, 287380), (284, 143690), (355, 114952), (568, 71845), (710, 57476), (1420, 28738), (2840, 14369)]